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Bug 1871981 - Cherry-pick upstream libwebrtc commit 6a992129fb

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Upstream commit: https://webrtc.googlesource.com/src/+/6a992129fb0dede4a8fbdaf5de43abaf43c20299
       Tighten som DCHECKs to CHECKs in VP9 packetization.

       Bug: chromium:1518991, chromium:1518994
       Change-Id: I47f68ba6aaf4874fd952332bf213e3a1e0389268
       Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/335241
       Auto-Submit: Erik Språng <sprang@webrtc.org>
       Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
       Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
       Cr-Commit-Position: refs/heads/main@{#41580}
This commit is contained in:
Michael Froman 2024-01-22 11:40:39 -06:00
parent 1edba6b5c8
commit 961556b584
2 changed files with 15 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
third_party/libwebrtc/modules/rtp_rtcp/source/rtp_format_vp9.cc vendored
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@ -94,8 +94,8 @@ size_t RefIndicesLength(const RTPVideoHeaderVP9& hdr) {
if (!hdr.inter_pic_predicted || !hdr.flexible_mode)
return 0;
RTC_DCHECK_GT(hdr.num_ref_pics, 0U);
RTC_DCHECK_LE(hdr.num_ref_pics, kMaxVp9RefPics);
RTC_CHECK_GT(hdr.num_ref_pics, 0U);
RTC_CHECK_LE(hdr.num_ref_pics, kMaxVp9RefPics);
return hdr.num_ref_pics;
}
@ -123,9 +123,9 @@ size_t SsDataLength(const RTPVideoHeaderVP9& hdr) {
if (!hdr.ss_data_available)
return 0;
RTC_DCHECK_GT(hdr.num_spatial_layers, 0U);
RTC_DCHECK_LE(hdr.num_spatial_layers, kMaxVp9NumberOfSpatialLayers);
RTC_DCHECK_LE(hdr.gof.num_frames_in_gof, kMaxVp9FramesInGof);
RTC_CHECK_GT(hdr.num_spatial_layers, 0U);
RTC_CHECK_LE(hdr.num_spatial_layers, kMaxVp9NumberOfSpatialLayers);
RTC_CHECK_LE(hdr.gof.num_frames_in_gof, kMaxVp9FramesInGof);
size_t length = 1; // V
if (hdr.spatial_layer_resolution_present) {
length += 4 * hdr.num_spatial_layers; // Y
@ -136,7 +136,7 @@ size_t SsDataLength(const RTPVideoHeaderVP9& hdr) {
// N_G
length += hdr.gof.num_frames_in_gof; // T, U, R
for (size_t i = 0; i < hdr.gof.num_frames_in_gof; ++i) {
RTC_DCHECK_LE(hdr.gof.num_ref_pics[i], kMaxVp9RefPics);
RTC_CHECK_LE(hdr.gof.num_ref_pics[i], kMaxVp9RefPics);
length += hdr.gof.num_ref_pics[i]; // R times
}
return length;
@ -248,9 +248,9 @@ bool WriteRefIndices(const RTPVideoHeaderVP9& vp9,
// +-+-+-+-+-+-+-+-+ -| -|
//
bool WriteSsData(const RTPVideoHeaderVP9& vp9, rtc::BitBufferWriter* writer) {
RTC_DCHECK_GT(vp9.num_spatial_layers, 0U);
RTC_DCHECK_LE(vp9.num_spatial_layers, kMaxVp9NumberOfSpatialLayers);
RTC_DCHECK_LE(vp9.gof.num_frames_in_gof, kMaxVp9FramesInGof);
RTC_CHECK_GT(vp9.num_spatial_layers, 0U);
RTC_CHECK_LE(vp9.num_spatial_layers, kMaxVp9NumberOfSpatialLayers);
RTC_CHECK_LE(vp9.gof.num_frames_in_gof, kMaxVp9FramesInGof);
bool g_bit = vp9.gof.num_frames_in_gof > 0;
RETURN_FALSE_ON_ERROR(writer->WriteBits(vp9.num_spatial_layers - 1, 3));
@ -288,6 +288,8 @@ bool WriteSsData(const RTPVideoHeaderVP9& vp9, rtc::BitBufferWriter* writer) {
// current API to invoke SVC is not flexible enough.
RTPVideoHeaderVP9 RemoveInactiveSpatialLayers(
const RTPVideoHeaderVP9& original_header) {
RTC_CHECK_LE(original_header.num_spatial_layers,
kMaxVp9NumberOfSpatialLayers);
RTPVideoHeaderVP9 hdr(original_header);
if (original_header.first_active_layer == 0)
return hdr;
@ -314,7 +316,7 @@ RtpPacketizerVp9::RtpPacketizerVp9(rtc::ArrayView<const uint8_t> payload,
header_size_(PayloadDescriptorLengthMinusSsData(hdr_)),
first_packet_extra_header_size_(SsDataLength(hdr_)),
remaining_payload_(payload) {
RTC_DCHECK_EQ(hdr_.first_active_layer, 0);
RTC_CHECK_EQ(hdr_.first_active_layer, 0);
limits.max_payload_len -= header_size_;
limits.first_packet_reduction_len += first_packet_extra_header_size_;
@ -357,8 +359,8 @@ bool RtpPacketizerVp9::NextPacket(RtpPacketToSend* packet) {
// Ensure end_of_picture is always set on top spatial layer when it is not
// dropped.
RTC_DCHECK(hdr_.spatial_idx < hdr_.num_spatial_layers - 1 ||
hdr_.end_of_picture);
RTC_CHECK(hdr_.spatial_idx < hdr_.num_spatial_layers - 1 ||
hdr_.end_of_picture);
packet->SetMarker(layer_end && hdr_.end_of_picture);
return true;

1
third_party/libwebrtc/moz-patch-stack/6a992129fb.no-op-cherry-pick-msg vendored Normal file
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@ -0,0 +1 @@
We cherry-picked this in bug 1871981